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The Law Office of Joan I. Norek

        Intellectual Property

            Chicago, Illinois

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Trademarks Directory
About Trademarks
More on Trademarks
Why Protect a Trademark
Trademarks vs Patents
Trademark Infringement
Trademark Internet Issues
Trademark Weight
Trademark Myths
TM Searches - Basic
TM Searches - Corporate
TM Pre-filing Assessment
About TM Registrations
Registration Process Outline
TM Registrations - Standard
TM Registrations - Corporate
TM Stand. Registration Order
Naming & Branding
About Domain Names
Names as Trademarks
Trademark Consultations
On-Line Order Searches



This-or-That Pages

Copyright vs Patent
Patent or Trademark It
Patent or Trade Secret It
Trade Secrets after Patent Filing
Provisional vs Non-provisional





Trademark Infringement

Infringement opinion overview:

To infringe, the third-party's mark must be confusingly similar to the claimant's mark, and a confusing similarity analysis includes, without limitation:

  • A comparison of the similarities between the marks not only as to how they look and sound, but also as to what they mean.

  • An assessment of the similar and dissimilar elements.  Are these elements distinctive?  Are these elements commonplace?

  • A comparison of the products and/or services sold under the marks.  Are they the same?  Are they related?  Would a consumer presume they would be sold by the same business?

  • An assessment of the strength of claimant's mark.  Is it arbitrary, suggestive, descriptive or generic?  If descriptive, has it attained secondary meaning, and if so, when?  Is it in a crowded field of similar marks?  How long has it been used?  Is it well known?

  • A determination of whether or not there has been actual consumer confusion, and that in turn is weighted against the length of time and extent of concomitant use.

  • A determination regarding the sophistication of the consumer population vis-ŗ-vis the products or services on which the marks are used.

  • A comparison of the trade channels in which the underlying products or services are sold.

Infringement analysis is always an analysis of whether or not the marks are confusingly similar.

  • Identical marks are not necessarily confusingly similar.

  • Non-identical marks can be confusingly similar.

Is a trademark infringement opinion worth the costs?  This is always a business decision, but a wrong decision can be costly.

other topics - trademark weight, naming and branding, oppositions, trademark searches, trademark registrations, domain names, slogans, patent myths, copyright myths

Trademark Infringement Opinions -- expensive, time-consuming, sometimes necessary.

Initial consultations start at $240.
The firmís charges for trademark infringement opinions start at $2,400.
Further cost estimates available after initial evaluation. 
Retainer required.

questions, inquiries - contact the firm (all contact modes) or call 312.419.8055



The Law Office of Joan I. Norek
25 E. Washington Street, Suite 1400
Chicago, Illinois  60602
Tel.  312.419.8055   Fax 312.236.6686
Contact the Firm


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All rights reserved.
noreklaw, noreklaw.com and PatentAttitude are trademarks and service marks of Joan I. Norek, Chicago, Illinois.

Use of this website does not create an attorney-client relationship.  This website provides information and resources but is neither legal advice nor a substitute for the legal advice of an IP attorney.  Retentions are subject to the discretion of the firm.
This website was designed and constructed by Joan I. Norek.